Bug #67686 [Fbk->NoF]: date_create_from_format memory leak
| From: | php-bugs at lists dot php dot net | Date: | Sun, 15 Nov 2020 04:22:14 +0000 |
| Subject: | Bug #67686 [Fbk->NoF]: date_create_from_format memory leak | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-230363@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=67686&edit=1
ID: 67686
Updated by: php-bugs@lists.php.net
Reported by: alex at iplenix dot com
Summary: date_create_from_format memory leak
-Status: Feedback
+Status: No Feedback
Type: Bug
Package: Date/time related
Operating System: windows 8.2 and centos 6.5
PHP Version: 5.5.15
Assigned To: cmb
Private report: N
New Comment:
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.
Previous Comments:
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[2020-11-05 15:44:01] cmb@php.net
I cannot reproduce this with current PHP-7.3. Does this still
happen to you with any of the actively supported PHP versions[1]?
[1] <https://www.php.net/supported-versions.php>
------------------------------------------------------------------------
[2014-07-25 19:17:27] alex at iplenix dot com
Description:
------------
function date_create_from_format leak memory when returns false.
Test script:
---------------
<?php
define('PHP_ERROR_REPORTING',E_ALL);
// Coloca no diretorio do binario e dai todos as indirecoes funcionam
chdir( dirname ( __FILE__ ) );
main_teste_memoria();
function iplx_echo_memuse($msg){
$m1=memory_get_usage();
$m2=memory_get_usage(true);
echo "$msg php($m1) system($m2)\n";
}
function test_date_create_from_format($ts='20140530140000'){
$date = date_create_from_format('d-m-Y H:i:s', $ts, new DateTimeZone('UTC'));
// $date = date_create_from_format('Y-m-d H:i:s', $ts, new DateTimeZone('UTC'));
// $date = date_create_from_format('YmdHis.u', $ts, new DateTimeZone('UTC'));
// $date = date_create_from_format('YmdHis.s', $ts, new DateTimeZone('UTC'));
// $date = date_create_from_format('d/m/y H:i:s', $ts, new DateTimeZone('UTC'));
$date = date_create_from_format('YmdHis', $ts, new DateTimeZone('UTC'));
for($i=0;$i<100;++$i){
$date->modify('+1 minute');
$ts=$date->format('YmdHis');
$date = date_create_from_format('YmdHis', $ts, new DateTimeZone('UTC'));
}
}
function main_teste_memoria(){
$ts = '20140530140000';
$counting = 1;
$oldLimit = ini_get("memory_limit");
echo "Current memory limit $oldLimit \n";
ini_set("memory_limit", "1M");
$oldLimit = ini_get("memory_limit");
gc_enable(); // enable memory management
echo "Current memory limit $oldLimit \n";
while(true){
iplx_echo_memuse("Before test_date_create_from_format");
test_date_create_from_format($ts);
$counting++;
iplx_echo_memuse("After test_date_create_from_format");
echo "Executions ($counting) \n";
}
}
?>
Actual result:
--------------
Executing on Windows 8.1, PHP 5.5.15 the result after some seconds is this crash.
> php test_date_create_from_format.php
...
Executions (8188)
Before test_date_create_from_format php(614928) system(1048576)
After test_date_create_from_format php(614960) system(1048576)
Executions (8189)
Before test_date_create_from_format php(614960) system(1048576)
PHP Fatal error: Allowed memory size of 1048576 bytes exhausted (tried to allocate 524288 bytes) in
X:\Iplenix_Fontes\mtx-gateway\gw-www\client-side\BirtechVirtualModem\bin\test_date_create_from_format.php
on line 26
==============================================================================
On centos 6.5 64bits, PHP 5.4.29 the result is very similar.
$ php test_date_create_from_format.php
...
Executions (4090)
Before test_date_create_from_format php(692288) system(1048576)
After test_date_create_from_format php(692352) system(1048576)
Executions (4091)
Before test_date_create_from_format php(692352) system(1048576)
After test_date_create_from_format php(692416) system(1048576)
Executions (4092)
Before test_date_create_from_format php(692416) system(1048576)
After test_date_create_from_format php(692480) system(1048576)
Executions (4093)
Before test_date_create_from_format php(692480) system(1048576)
PHP Fatal error: Allowed memory size of 1048576 bytes exhausted (tried to allocate 524288 bytes) in
/var/iplenix/mtx-gateway/gw-www/client-side/BirtechVirtualModem/bin/test_date_create_from_format.php
on line 26
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Edit this bug report at https://bugs.php.net/bug.php?id=67686&edit=1